diff --git a/pkgs/by-name/ad/adw-gtk3/package.nix b/pkgs/by-name/ad/adw-gtk3/package.nix
index 7511b95242c7..de4424e7a986 100644
--- a/pkgs/by-name/ad/adw-gtk3/package.nix
+++ b/pkgs/by-name/ad/adw-gtk3/package.nix
@@ -5,34 +5,27 @@
   nix-update-script,
   meson,
   ninja,
-  sassc,
+  dart-sass,
 }:
 
 stdenvNoCC.mkDerivation (finalAttrs: {
   pname = "adw-gtk3";
-  version = "5.10";
+  version = "6.2";
 
   src = fetchFromGitHub {
     owner = "lassekongo83";
     repo = "adw-gtk3";
     tag = "v${finalAttrs.version}";
-    hash = "sha256-0OZk27b0kujzWtRX5uvelTMivL19g6sNB1IY6BsrO10=";
+    hash = "sha256-YYaqSEnIYHHkY4L3UhFBkR3DehoB6QADhSGOP/9NKx8=";
   };
 
   nativeBuildInputs = [
     meson
     ninja
-    sassc
+    dart-sass
   ];
 
-  postPatch = ''
-    chmod +x gtk/src/adw-gtk3-dark/gtk-3.0/install-dark-theme.sh
-    patchShebangs gtk/src/adw-gtk3-dark/gtk-3.0/install-dark-theme.sh
-  '';
-
-  passthru = {
-    updateScript = nix-update-script { };
-  };
+  passthru.updateScript = nix-update-script { };
 
   meta = {
     description = "Theme from libadwaita ported to GTK-3";